header {
  background-color: blue;
}
@media screen and (min-width: 1200px) {
  header {
    background-color: red;
  }
}
html.lt-ie9 header {
  background-color: red;
}
div {
  margin: 0;
  padding: 0;
  background-color: #fff;
  color: #cccccc;
}
.div-common {
  margin: 0;
  padding: 0;
  background-color: #fff;
  color: #cccccc;
}
@media (orientation: portrait) and tv {
  .my-selector {
    background-color: black;
  }
}
.caller {
  color: blue;
}
